B S Kaurov

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Absorbance changes at 450 nm of the semiquinone form of the secondary electron acceptor were studied in chromatophores of Rhodospirillum rubrum. When chromatophores are illuminated by a series of single turnover flashes ubisemiquinone is formed and destroyed on alternate flashes at ambient redox potential from 100 to 250 mV. A simple kinetic model of the(More)
Light-induced fluorescence quenching of atebrin in isolated pea chloroplasts was studied. The observed quenching effect was shown to be influenced by DCMU, ADP+P and cofactors of photosynthetic electron transport. In the presence of ADP+P the amplitude of the quenching in control plants was not changed, whereas in the pea mutant blocked at PS2 it was(More)
A mathematical model, describing the binary oscillation of the concentration of semiquinone form of the secondary acceptor (ubiquinone) in photosynthetic reaction center of purple bacteria is proposed. This model takes into account both the changes of the ubiquinone state when the chromatophores are subjected to short flashes of light, and the successive(More)
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